Abstract

The aim of this paper is a comparison of the effectiveness of different macrocharacterization techniques for the prediction of the degree of dispersion and intercalation of bidimensional nanofillers in an amorphous thermoplastic matrix. Organically modified montmorillonites (omMMT) were used as bidimensional nanofillers, whereas amorphous polyethylene-terephthalate copolymer (PETg) was used as matrix. Wide angle xray diffraction analysis showed no relevant difference between the samples processed at different temperatures, all characterized by a predominantly intercalated structure. On the other hand, transmission electron microscopy (TEM) analysis showed the presence of some degree of exfoliation, as well as the presence of lamellar stacks of different thickness. The aspect ratio of lamellar stacks was estimated by means of rheological, mechanical, and gas permeability analysis. All techniques provided values which are in quite good agreement with TEM analysis. Furthermore, all techniques were able to capture the increase in the lamellar stack aspect ratio with decreasing processing temperature.

Autore Pugliese

• Greco Antonio , Maffezzoli Alfonso , Esposito Corcione Carola

Tutti gli autori

• C. Esposito Corcione , A. Cavallo , E. Pesce , A. Greco , A. Maffezzoli

Titolo volume/Rivista

POLYMER ENGINEERING AND SCIENCE

Anno di pubblicazione

2011

ISSN

0032-3888

ISBN

Non Disponibile

Numero di citazioni Wos

33

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

39

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile